[wing/wip/nacho/poll-stream] Minor cleanup

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 950079f6429f5e1d7d83e03c2d6a4cc3760e34bd
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Wed Nov 28 17:11:25 2018 +0100

    Minor cleanup

 wing/winginputstream.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/wing/winginputstream.c b/wing/winginputstream.c
index e2c8901..35cff83 100644
--- a/wing/winginputstream.c
+++ b/wing/winginputstream.c
@@ -333,11 +333,9 @@ wing_input_stream_pollable_create_source (GPollableInputStream *pollable,
 
   priv = wing_input_stream_get_instance_private (wing_stream);
 
-  pollable_source = g_pollable_source_new (G_OBJECT (wing_stream));
   handle_source = wing_create_source (priv->overlap.hEvent,
                                       G_IO_IN, cancellable);
-  g_source_set_dummy_callback (handle_source);
-  g_source_add_child_source (pollable_source, handle_source);
+  pollable_source = g_pollable_source_new_full (pollable, handle_source, cancelable);
   g_source_unref (handle_source);
 
   return pollable_source;